And Will It Be Visible At All From A Distance of Light Year
2007-09-26 17:43:25 · 3 answers · asked by engelfeurs 2 in Science & Mathematics ➔ Astronomy & Space
A dead star will eventually cool to the temperature of the background radiation, currently a bit less than 4 Kelvins. Such a cold, dead cinder would be virtually invisible. But the universe is not yet old enough for any white dwarfs to have cooled below about 5000K, and have an absolute magnitude around 15. That's a little too dim to be visible to the naked eye from 1 light year.
2007-09-26 18:23:32 · answer #1 · answered by injanier 7 · 1⤊ 0⤋
The cooled temperature of a white dwarf is unable to be determined. The Universe is not yet old enough for the first generation of white dwarfs to have cooled. This is a process occuring over trillions of years.
White dwarfs will eventually cool to such a point that they will no longer be visible. At that time they would be termed a black dwarf.
2007-09-26 17:54:43 · answer #2 · answered by Troasa 7 · 1⤊ 0⤋
There is a formula recently released by Victoria University of Astrological pursuits, which relates to this exact question.
The formula to answer this question is as follows:
A(<4.67> / 78.9) + (Re - e) / (E = mcÎ) Ï + circ 28.6 { the size of the star in question } = Î 24.5
Any further questions can be directed to my email
2007-09-26 20:00:30 · answer #3 · answered by Anonymous · 0⤊ 2⤋